Gold Member Since 2012
Audited Supplier
Hangzhou Ualloy Material Co., Ltd.

CuNi40, Copper Nickel Alloy, Cu-Ni Alloy manufacturer / supplier in China, offering Dia 60mm CuNi40 Bar Cupro Nickel Alloy 6j40 Rod for Resistance, High Quality Fecral 0cr27al7mo2 Resistor Foil/Bright Coil, 0cr21al6 Fecral Alloy Foil/ Heating Resistance Wire and so on.

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Supplier Homepage Product Cupronickel Alloy Dia 60mm CuNi40 Bar Cupro Nickel Alloy 6j40 Rod for Resistance

Dia 60mm CuNi40 Bar Cupro Nickel Alloy 6j40 Rod for Resistance

Purchase Qty.:
20-49 50+
FOB Unit Price: US $94.2 US $94
Purchase Qty. (Kilograms) FOB Unit Price
20-49 US $94.2
50+ US $94
Get Latest Price
Production Capacity: 500tons/Year
Transport Package: in Roll/Coil/Spool
Payment Terms: L/C, T/T, Paypal, Western Union
Basic Info
  • Model NO.: 6J40
  • Material: Ni,Cu
  • Condition: Bright
  • Operating Temperature Range: 5~500oc
  • Emf Vs Cu(0~100 Oc): 45V/Oc
  • Elongation: Min15%
  • Advantages: Fine After-Sale Services
  • Trademark: Ualloy
  • Origin: Zhejiang, China
  • Product Type: Rod
  • Carbon Content: Low Carbon
  • Density: 8.88 g/cm3
  • Temperature Coefficient of Resistance: -40~+40 *10-6 /Oc
  • Resistivity (20oc): 0.48 ±0.03 Ohm*mm2/M
  • Cetification: ISO9001
  • Chemical Composition: Cu, Ni
  • Specification: RoHS, SGS
  • HS Code: 74082290
Product Description

Constantan is a copper-nickel alloy usually consisting of 55% copper and 45% nickel, also known as Eureka,
Advance and Ferry. Its main feature is its resistivity which is constant over a wide range of temperatures. Other alloys with similarly low temperature coefficients are known, such as manganin.
Its resistivity is high enough to achieve suitable resistance values in even very small grids, and its temperature
coefficient of resistance is not excessive. In addition, constantan is characterized by good fatigue life and relatively high elongation capability.
                    Chemical Content(%)











         Mechanical Properties 


8.88 g/cm3

Operating temperature range 


Temperature Coefficient of Resistance 

-40~+40 *10-6 /ºC 

EMF VS Cu(0~100 ºC)


Resistivity (20ºC)

0.48 ±0.03 ohm*mm2/m




2. Packing detail
   1). Coil (plastic spool) + compressed ply-wooden case + pallet 
   2). Coil (plastic spool) + carton + pallet  
3. Products and services
   1). Pass: ISO9001 certification, and SO14001cetification;
   2). Fine after-sale services;
   3). Small order accepted;
   4). Fast delivery;
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